<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡品视图区域 -->
    <el-card>
      <el-row>
        <!-- 搜索框-->
        <el-col>
          <el-input placeholder="请输入内容" v-model="queryInfo.query" @clear="getUserList()" clearable>
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
          <el-button type="primary" class="btn" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="UserList" border style="width: 100%">
        <el-table-column width="50" type="index"></el-table-column>
        <el-table-column prop="username" label="姓名" width="180"> </el-table-column>
        <el-table-column prop="email" label="邮箱" width="180"> </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色" width="180"> </el-table-column>
        <el-table-column label="状态" width="180">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"> </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作"
          ><template slot-scope="scope">
            <!-- 编辑 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUser(scope.row.id)"></el-button>
            <!-- 分配角色 -->
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 对话框底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户的对话框 -->
    <el-dialog title="编辑用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" :disabled="true" width="90%"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 对话框底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <!-- 内容主题区域 -->
      <div>
        <p>当前的用户：{{ userinfo.username }}</p>
        <p>当前的角色：{{ userinfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"> </el-option>
          </el-select>
        </p>
      </div>
      <!-- 对话框底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^\w+@[a-zA-Z0-9]{2,10}(?:\.[a-z]{2,4}){1,3}$/
      if (regEmail.test(value)) return callback()
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      // 验证手机号的正则表达式
      const regMobile = /^((0\d{2,3}-\d{7,8})|(1[3584]\d{9}))$/
      if (regMobile.test(value)) return callback()
      callback(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页号
        pagenum: 1,
        // 当前页显示多少条数据
        pagesize: 5,
      },
      total: 0,
      // 保存请求回来的用户列表数据
      UserList: [],
      // 需要被分配角色的用户信息
      userInfo: {},
      //   控制添加对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur',
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur',
          },
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur',
          },
          {
            min: 6,
            max: 15,
            message: '密码的长度在6~15个字符之间',
            trigger: 'blur',
          },
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur',
          },
          {
            validator: checkEmail,
            trigger: 'blur',
          },
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur',
          },
          {
            validator: checkMobile,
            trigger: 'blur',
          },
        ],
      },
      //   控制编辑对话框的显示与隐藏
      editDialogVisible: false,
      //   编辑用户的表单数据
      editForm: {},
      // 编辑表单的验证规则对象
      editFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur',
          },
          {
            validator: checkEmail,
            trigger: 'blur',
          },
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur',
          },
          {
            validator: checkMobile,
            trigger: 'blur',
          },
        ],
      },
      //   需要被分配角色的用户信息
      userinfo: {},
      //   获取到的角色列表
      rolesList: [],
      //控制分配用户角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //   当前被选中的角色id
      selectedRoleId: '',
    }
  },
  // 生命周期函数
  created() {
    this.getUserList()
  },
  methods: {
    //   获取用户列表数据
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      this.UserList = res.data.users
      this.total = res.data.total
    },
    // 监听 switch 开关状态的改变
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      return this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 监听 pagesize改变的事件
    handleSizeChange(size) {
      this.queryInfo.pagesize = size
      this.getUserList()
    },
    // 监听 当前页pagenum 改变的事件
    handleCurrentChange(pagenum) {
      this.queryInfo.pagenum = pagenum
      this.getUserList()
    },
    // 监听编辑用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 显示编辑用户的对话框
    async showEditDialog(id) {
      //   console.log(id)
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询信息失败')
      console.log(res)
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 点击按钮确认修改用户信息
    editUser() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败！')
        this.$message.success('更新用户信息成功！')
        this.getUserList()
        this.editDialogVisible = false
      })
    },
    // 根据用户id删除用户
    async removeUser(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).catch((err) => {
        return err
      })
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消删除，则返回值为字符串 cancel
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除！')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    //显示分配角色对话框
    async setRole(userInfo) {
      this.userinfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userinfo = {}
    },
    // 点击确认分配角色
    async saveRoleInfo() {
      // 判断用户是否选择了分配的角色
      if (!this.selectedRoleId) {
        return this.$message.error('请选择需要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userinfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('分配角色失败！')
      this.$message.success('分配角色成功！')
      this.setRoleDialogVisible = false
      this.getUserList()
      this.setRoleDialogClosed()
    },
  },
}
</script>

<style lang="less" scoped>
.el-input {
  width: 300px;
}
.btn {
  margin-left: 20px;
}
.el-table {
  margin-top: 10px;
  font-size: 12px;
}
</style>



